US20060048317A1 - Hand-guided sweeper - Google Patents
Hand-guided sweeper Download PDFInfo
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- US20060048317A1 US20060048317A1 US11/206,190 US20619005A US2006048317A1 US 20060048317 A1 US20060048317 A1 US 20060048317A1 US 20619005 A US20619005 A US 20619005A US 2006048317 A1 US2006048317 A1 US 2006048317A1
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- United States
- Prior art keywords
- sweeper
- hand
- adjusting device
- guided
- guide rod
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/02—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt
- E01H1/05—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt with driven brushes
- E01H1/056—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt with driven brushes having horizontal axes
Definitions
- United States patent publication U.S. 2005/0045347 A1 discloses a hand-guided work apparatus such as a sweeper.
- the work apparatus includes a guide rod for guiding the work apparatus over the ground and a work tool which is driven in rotation by a drive motor.
- Two wheels are provided for guiding the work apparatus over the ground. The wheels can be adjusted in order to make possible an adjustment in elevation. However, this causes the elevation of the handles of the work apparatus to change.
- an inclination of the running direction of the sweeper brush relative to the running direction of the wheels is advantageous because, in this way, a dirtying of an already cleaned ground surface can be avoided.
- the running direction is then the direction in which the wheel or the sweeper brush rolls on the ground, that is, the peripheral direction of wheel or sweeper brush perpendicular to the rotational axis in the region in contact with the ground.
- an adaptation of the handle elevation via an adjustment of the wheels is no longer possible because one end of the sweeper brush would lift up away from the ground.
- the hand-guided sweeper of the invention includes: a guide rod; at least one handle attached to the guide rod for guiding the sweeper over the ground; at least one sweeper brush; a drive motor for driving the sweeper brush in rotation; at least one wheel and the at least one wheel and the sweeper brush being in contact engagement with the ground during operation of the sweeper; and, an adjusting device for positionally adjusting the guide rod relative to the sweeper brush about an axis vertical with respect to the ground.
- the sweeper brush is displaceable about an axis referred to the ground. In this way, it is ensured that the sweeper brush lies on the ground after the adjustment or displacement.
- An adjustment of the handles can be achieved advantageously in that the guide rod is adjusted about a horizontal axis. The position of the wheels and the brush remains the same so that the position of the sweeper brush on the ground is not influenced by the adjustment of the elevation of the handles.
- the first adjusting device includes a pin which, in a first position of the adjusting device, is arranged in a first opening and, in a second position of the adjusting device, the pin is arranged in a second opening.
- the openings define fixed adjusting positions so that the operator can undertake an adjustment to the desired position in a simple manner.
- the pin is held by a spring in the opening. For adjusting, the pin need only be moved against the force of the spring out of the one opening and moved to another opening where the pin automatically latches into place because of the force of the spring. The spring ensures also that the pin is held reliably in the opening.
- the first adjusting device has three openings which make possible an arrangement of the sweeper brush in three positions, namely: parallel to the running direction of the wheel, rotated in one direction by 15° relative to the running direction of the wheel and rotated in the other direction by 15° relative to the running direction of the wheel. It has been shown that dirt is swept only in one direction for a rotation of the sweeper brush by 15° relative to the running direction of the wheel so that an already cleaned surface does not become dirty again. When sweeping in the counter direction, the sweeper brush can be rotated in a simple manner by 15° relative to the running direction of the wheel in the opposite direction so that a dirtying of already cleaned surface is avoided.
- the first adjusting device is advantageously mounted on the end of the guide rod facing toward the sweeper brush.
- a rapid and ergonomic actuation of the adjusting device can be ensured in that the first adjusting device has an actuating element which extends up to the end of the guide rod facing away from the sweeper brush.
- the actuating element can then be reached by an operator standing in the region of the handles. The operator need not go to the other end of the guide rod. In this way, an ergonomic working by the operator and a rapid adjustment is possible.
- a simple and stable embodiment of the actuating element is obtained when the actuating element is configured as an actuating tube which is connected to the pin.
- the first adjusting device has a mounting flange which is attached to the connecting flange so as to be rotatable about the vertical axis and on which the actuating element is attached.
- the drive motor and the sweeper brush are connected to a common mount with a mounting flange.
- the adjusting devices can be retrofitted via a simple fixing of the mount to the mounting flange.
- the mounting flange and/or the connecting flange contain magnesium.
- the connecting flange and mounting flange are of magnesium.
- the second adjusting device has toothed elements which are in engagement with each other.
- the first toothed element is advantageously connected to the connecting flange so that it cannot rotate relative thereto and the second toothed element is connected to the guide rod.
- the toothed elements are releasably clamped against each other. By loosening the tension or clamping force, the toothed elements can be rotated relative to each other so that the guide rod can be rotated relative to the connecting flange about a horizontal axis.
- a simple manipulation can be achieved in that the connecting flange is so pretensioned that the toothed elements can be rotated relative to each other when the clamping force is released.
- the clamping force need simply be relaxed or loosened and the guide rod can be rotated into the desired position.
- the guide rod is fixed by a renewed clamping of the toothed elements.
- the second adjusting device is configured to be mirror inverted to the center axis of the guide rod and has two pairs of toothed elements which are mounted on respective sides of the guide rod.
- FIG. 1 is a perspective view of the sweeper according to the invention
- FIG. 2 is a perspective view of the adjusting devices of the sweeper of FIG. 1 ;
- FIG. 3 is an enlarged perspective view, partially in section, of the adjusting devices of FIG. 2 ;
- FIG. 4 is a side elevation view of the adjusting devices.
- FIG. 5 is a perspective view of a toothed element.
- the sweeper 1 shown in FIG. 1 has a drive motor 2 such as a two-stroke engine which drives two sweeper brushes 10 in rotation via a flexible shaft (not shown) and a gear assembly 11 .
- a drive motor 2 such as a two-stroke engine which drives two sweeper brushes 10 in rotation via a flexible shaft (not shown) and a gear assembly 11 .
- the drive motor 2 and the sweeper brushes 10 are fixed on a common mount 8 .
- the mount 8 is attached to a mounting flange 12 at the bores 39 shown in FIG. 4 .
- the mounting flange 12 is attached to a connecting flange 14 via a first adjusting device 50 .
- a guide rod 3 is mounted on the connecting flange 14 via a second adjusting device 51 .
- the adjusting devices 50 and 51 are fixed at a first end 53 of the guide rod 3 ( FIG. 2 ).
- the drive motor 2 is arranged above the adjusting devices ( 50 , 51 ) and thereby lies in the travel direction behind the sweeper brushes 10 . In this way, the center of gravity does not lie above the sweeper brushes 10 . This reduces the force acting on the sweeper brushes 10 in the vertical direction which leads to an improved sweeping result.
- a carrier handle 13 is attached to the guide rod 3 for the simple transport of the sweeper 1 .
- the guide rod 3 ( FIG. 2 ) has an end 52 lying opposite the first end 53 .
- Two handle tubes 4 are mounted on the end 52 of the guide rod 3 so as to be symmetrical to a mirror plane including the center axis 54 of the guide rod 3 .
- Each handle tube 4 has a handle 24 on which the sweeper 1 can be guided over the ground.
- the connecting flange 14 is configured mirror symmetrically to the mirror plane including the center axis 54 of the guide rod 3 shown in FIG. 2 .
- Two struts or outriggers 15 are fixed on the connecting flange 14 and one of these struts or outriggers is shown in FIG. 1 .
- the other strut 15 extends on the opposite-lying side of the connecting flange 14 and is mirror symmetric to the strut 15 shown.
- the two struts hold the axle 6 on which two wheels ( 5 , 7 ) of the sweeper 1 are mounted.
- a wheel 5 is shown in phantom outline and the wheel 7 is shown in part.
- a hand wheel 40 is provided which is also indicated in FIG. 1 in phantom outline.
- the sweeper brushes 10 are driven opposite to the running direction 48 of the wheels 5 .
- the running direction 48 of the wheels ( 5 , 7 ) runs parallel to the running direction 49 of the sweeper brushes 10 .
- the sweeper 1 has an actuating tube 16 for actuating the first adjusting device 50 .
- the actuating tube 16 extends from the mounting flange 12 to the second end 52 of the guide rod 3 at which the handle tubes 4 are also fixed.
- the actuating tube 16 is configured so as to be rolled out at its end 55 facing away from the mounting flange 12 so that the operator can easily grasp the actuating tube 55 .
- the drive motor 2 is supported on the mounting flange 12 .
- the first adjusting device includes a bolt 22 with which the mounting flange 12 is rotatably journalled about a vertical axis 43 on the connecting flange 14 .
- the mounting flange 12 has a guide piece 41 onto which the actuating tube 16 is pushed.
- the guide piece 41 is configured as a strut which extends on the outer side of a support 33 (shown in FIG. 3 ) in the longitudinal direction of the support 33 .
- the mounting flange 12 has the form of an angled member having a U-shaped profile.
- the mounting flange 12 has ribs 37 , which lie on the upper side of the connecting flange 14 on both sides of the mounting flange 12 , and also has thickenings 38 on the end which faces toward the mount 8 ( FIG. 1 ).
- the thickenings 38 extend on the base of the U-shaped profile outwardly.
- ribs 36 are provided for stiffening and define extensions of the legs of the U-shaped profile.
- the first adjusting device 50 has the opening 19 (shown in FIG. 2 ) which is configured as an elongated opening.
- the second adjusting device 51 permits an adjustment of the guide rod 3 about the horizontal axis 42 (see FIG. 4 ).
- the guide rod 3 has a V-shaped longitudinal slot 17 on its longitudinal sides.
- a toothed element 27 is mounted in each of the longitudinal slots 17 .
- the connecting flange 14 has respective V-shaped profiles 26 opposite corresponding ones of the longitudinal slots 17 .
- Respective toothed elements 27 are mounted in the longitudinal slots 17 and the V-shaped profiles 26 . Each two toothed elements 27 thereby form a toothed pair.
- a toothed element 27 is shown perspectively enlarged in FIG. 5 .
- the toothed element 27 has a set of teeth 47 at its side.
- a tightening or clamping bore 44 is arranged at the center of the set of teeth 47 .
- the toothed element 27 On the side, which faces away from the set of teeth 47 , the toothed element 27 has a V-profile 46 formed as an elevation. This V-shaped profile 46 corresponds to the V-shaped profile 26 of the connecting flange 14 and the longitudinal slot 17 in the guide rod 3 .
- Attachment openings 45 are arranged on both sides of the set of teeth 47 .
- the connecting flange 14 and the attachment section 25 of the strut 15 have a clamping bore 39 .
- the attachment section 25 is arranged on the connecting flange 14 and the clamping bore 29 is arranged concentrically to the clamping bore 44 of the toothed elements 27 .
- Attachment bores 28 are arranged concentrically to the attachment openings 45 of the toothed elements 27 .
- the attachment bores 28 are on both sides of the clamping bore 29 .
- the toothed element 27 is arranged in the V-profile 26 of the connecting flange 14 and is connected to the connecting flange 14 and the attachment section 25 of the strut 15 at the attachment bores 28 .
- the opposite-lying toothed element 27 is fixedly connected to the guide rod 3 at its attachment bores 45 .
- a bolt of the hand wheel 40 extends through the clamping bore 29 and the clamping bores 44 of both toothed elements 27 . With the hand wheel 40 , the two toothed elements 27 can be clamped against each other.
- the connecting flange 14 is pretensioned outwardly so that it bends outwardly after loosening the hand wheel 40 and the two toothed elements 27 can be rotated relative to each other.
- a stop 18 is provided on the mounting flange 12 and this stop limits the adjustment of the guide rod 3 upwardly.
- the set of teeth 47 of the toothed elements 27 can, for example, include 72 teeth so that adjustment steps of 50 are possible.
- the first adjusting device 50 is shown partially in section.
- the first adjusting device 50 has three openings ( 19 , 20 , 21 ) which are configured as respective longitudinal holes.
- the longitudinal direction of the openings ( 19 , 20 , 21 ) extends radially to the bolt 22 .
- Each two mutually adjacent openings conjointly define an angle ⁇ with each other referred to the vertical axis 43 running through the bolt 22 .
- the angle ⁇ is preferably between 10° to 20°, especially approximately 15°.
- a pin 30 is disposed in the opening 21 .
- the pin 30 is held in a receptacle 34 .
- the receptacle 34 is connected to the actuating tube 16 via a transverse bore 23 shown in FIG. 2 .
- the pin 30 is surrounded by a spring 31 which is braced with one end on the pin 30 and, at the other end, on a shoulder 32 in the stub 33 of the mounting flange 12 .
- the actuating tube 16 is pushed over the stub 33 of the mounting flange 12 and is guided on the guide 41 which is configured as one piece with the support 33 .
- the mounting flange 12 has ribs 35 which extend between the two legs of the mounting flange 12 .
- the mounting flange contains magnesium and/or is made of magnesium.
- the connecting flange 14 also advantageously contains magnesium or is made completely of magnesium.
- the actuating tube 16 is pulled in the direction toward the handle tubes 4 for actuating the first adjusting device 50 . In this way, the pin 30 is pulled out of the opening 21 .
- the actuating tube 16 together with the sweeper brushes, which are arranged on the mounting flange 12 , and the drive motor can then be rotated about the vertical axis 43 (shown in FIG.
- the pin 30 is brought over the opening 19 or the opening 20 and the actuating tube 16 is released so that the pin 30 is pressed into the opening 19 or 20 by the spring 31 .
- Other openings can be provided in order to offer more adjusting possibilities.
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Abstract
A hand-guided sweeper (1) includes a guide rod (3) on which a handle (24) is mounted for guiding the sweeper (1) over the ground. The sweeper (1) has at least one sweeper brush (10), which is driven in rotation by a drive motor (2), and at least one wheel (5). The wheel (5) and the sweeper brush (10) lie against the ground during operation of the sweeper (1). The sweeper (1) has a first adjusting device (50) which permits an adjustment of the guide rod (3) relative to the sweeper brush (10) about a vertical axis (43) referred to the ground.
Description
- This application claims priority of German patent application no. 10 2004 042 708.9, filed Sep. 3, 2004, the entire content of which is incorporated herein by reference.
- United States patent publication U.S. 2005/0045347 A1 discloses a hand-guided work apparatus such as a sweeper. The work apparatus includes a guide rod for guiding the work apparatus over the ground and a work tool which is driven in rotation by a drive motor. Two wheels are provided for guiding the work apparatus over the ground. The wheels can be adjusted in order to make possible an adjustment in elevation. However, this causes the elevation of the handles of the work apparatus to change.
- It has been shown that, for a sweeper, an inclination of the running direction of the sweeper brush relative to the running direction of the wheels is advantageous because, in this way, a dirtying of an already cleaned ground surface can be avoided. To make possible a back and forth cleaning of a surface, it is desirable that the inclination of the running direction of the sweeper brush be adjusted relative to the running direction of the wheels. The running direction is then the direction in which the wheel or the sweeper brush rolls on the ground, that is, the peripheral direction of wheel or sweeper brush perpendicular to the rotational axis in the region in contact with the ground. However, with an inclined sweeper brush, an adaptation of the handle elevation via an adjustment of the wheels is no longer possible because one end of the sweeper brush would lift up away from the ground.
- It is an object of the invention to provide a hand-guided sweeper which permits an adaptation of the handle elevation and the running direction of the sweeper in a simple manner.
- The hand-guided sweeper of the invention includes: a guide rod; at least one handle attached to the guide rod for guiding the sweeper over the ground; at least one sweeper brush; a drive motor for driving the sweeper brush in rotation; at least one wheel and the at least one wheel and the sweeper brush being in contact engagement with the ground during operation of the sweeper; and, an adjusting device for positionally adjusting the guide rod relative to the sweeper brush about an axis vertical with respect to the ground.
- The sweeper brush is displaceable about an axis referred to the ground. In this way, it is ensured that the sweeper brush lies on the ground after the adjustment or displacement. An adjustment of the handles can be achieved advantageously in that the guide rod is adjusted about a horizontal axis. The position of the wheels and the brush remains the same so that the position of the sweeper brush on the ground is not influenced by the adjustment of the elevation of the handles.
- It is practical to mount the first and second adjusting devices on a common connecting flange. In this way, it is especially possible to retrofit existing sweepers with little complexity with the adjusting devices. The complexity for the retrofit is slight because both adjusting devices are mounted on a common connecting flange.
- Advantageously, the first adjusting device includes a pin which, in a first position of the adjusting device, is arranged in a first opening and, in a second position of the adjusting device, the pin is arranged in a second opening. In this way, a simple adjustability is provided. The openings define fixed adjusting positions so that the operator can undertake an adjustment to the desired position in a simple manner. Advantageously, the pin is held by a spring in the opening. For adjusting, the pin need only be moved against the force of the spring out of the one opening and moved to another opening where the pin automatically latches into place because of the force of the spring. The spring ensures also that the pin is held reliably in the opening. Advantageously, the first adjusting device has three openings which make possible an arrangement of the sweeper brush in three positions, namely: parallel to the running direction of the wheel, rotated in one direction by 15° relative to the running direction of the wheel and rotated in the other direction by 15° relative to the running direction of the wheel. It has been shown that dirt is swept only in one direction for a rotation of the sweeper brush by 15° relative to the running direction of the wheel so that an already cleaned surface does not become dirty again. When sweeping in the counter direction, the sweeper brush can be rotated in a simple manner by 15° relative to the running direction of the wheel in the opposite direction so that a dirtying of already cleaned surface is avoided.
- The first adjusting device is advantageously mounted on the end of the guide rod facing toward the sweeper brush. A rapid and ergonomic actuation of the adjusting device can be ensured in that the first adjusting device has an actuating element which extends up to the end of the guide rod facing away from the sweeper brush. The actuating element can then be reached by an operator standing in the region of the handles. The operator need not go to the other end of the guide rod. In this way, an ergonomic working by the operator and a rapid adjustment is possible. A simple and stable embodiment of the actuating element is obtained when the actuating element is configured as an actuating tube which is connected to the pin. The first adjusting device has a mounting flange which is attached to the connecting flange so as to be rotatable about the vertical axis and on which the actuating element is attached. Advantageously, the drive motor and the sweeper brush are connected to a common mount with a mounting flange. In this way, the adjusting devices can be retrofitted via a simple fixing of the mount to the mounting flange. In order to ensure an adequate stability of mounting flange and connecting flange, it is provided that the mounting flange and/or the connecting flange contain magnesium. According to a feature of the invention, the connecting flange and mounting flange are of magnesium.
- Advantageously, the second adjusting device has toothed elements which are in engagement with each other. The first toothed element is advantageously connected to the connecting flange so that it cannot rotate relative thereto and the second toothed element is connected to the guide rod. The toothed elements are releasably clamped against each other. By loosening the tension or clamping force, the toothed elements can be rotated relative to each other so that the guide rod can be rotated relative to the connecting flange about a horizontal axis. A simple manipulation can be achieved in that the connecting flange is so pretensioned that the toothed elements can be rotated relative to each other when the clamping force is released. To adjust the guide rod, the clamping force need simply be relaxed or loosened and the guide rod can be rotated into the desired position. The guide rod is fixed by a renewed clamping of the toothed elements. With the configuration of the toothed elements, a good adjustability of the handle elevation is achieved with high stability and low weight of the adjusting device. Advantageously, the second adjusting device is configured to be mirror inverted to the center axis of the guide rod and has two pairs of toothed elements which are mounted on respective sides of the guide rod.
- The invention will now be described with reference to the drawings wherein:
-
FIG. 1 is a perspective view of the sweeper according to the invention; -
FIG. 2 is a perspective view of the adjusting devices of the sweeper ofFIG. 1 ; -
FIG. 3 is an enlarged perspective view, partially in section, of the adjusting devices ofFIG. 2 ; -
FIG. 4 is a side elevation view of the adjusting devices; and, -
FIG. 5 is a perspective view of a toothed element. - The
sweeper 1 shown inFIG. 1 has adrive motor 2 such as a two-stroke engine which drives twosweeper brushes 10 in rotation via a flexible shaft (not shown) and agear assembly 11. InFIG. 1 , only one of the twosweeper brushes 10 is shown. Theother sweeper brush 10 is arranged mirror symmetrically on the other side of thegear assembly 11. The twosweeper brushes 10 are partially surrounded by aprotective cover 9. Thedrive motor 2 and thesweeper brushes 10 are fixed on a common mount 8. The mount 8 is attached to a mountingflange 12 at thebores 39 shown inFIG. 4 . The mountingflange 12 is attached to a connectingflange 14 via afirst adjusting device 50. Aguide rod 3 is mounted on the connectingflange 14 via asecond adjusting device 51. The adjustingdevices first end 53 of the guide rod 3 (FIG. 2 ). - The
drive motor 2 is arranged above the adjusting devices (50, 51) and thereby lies in the travel direction behind the sweeper brushes 10. In this way, the center of gravity does not lie above the sweeper brushes 10. This reduces the force acting on the sweeper brushes 10 in the vertical direction which leads to an improved sweeping result. A carrier handle 13 is attached to theguide rod 3 for the simple transport of thesweeper 1. - The guide rod 3 (
FIG. 2 ) has anend 52 lying opposite thefirst end 53. Twohandle tubes 4 are mounted on theend 52 of theguide rod 3 so as to be symmetrical to a mirror plane including thecenter axis 54 of theguide rod 3. Eachhandle tube 4 has ahandle 24 on which thesweeper 1 can be guided over the ground. - The connecting
flange 14 is configured mirror symmetrically to the mirror plane including thecenter axis 54 of theguide rod 3 shown inFIG. 2 . Two struts oroutriggers 15 are fixed on the connectingflange 14 and one of these struts or outriggers is shown inFIG. 1 . Theother strut 15 extends on the opposite-lying side of the connectingflange 14 and is mirror symmetric to thestrut 15 shown. The two struts hold theaxle 6 on which two wheels (5, 7) of thesweeper 1 are mounted. InFIG. 1 , awheel 5 is shown in phantom outline and thewheel 7 is shown in part. To actuate thesecond adjusting device 51, ahand wheel 40 is provided which is also indicated inFIG. 1 in phantom outline. The sweeper brushes 10 are driven opposite to the runningdirection 48 of thewheels 5. InFIG. 1 , the runningdirection 48 of the wheels (5, 7) runs parallel to the runningdirection 49 of the sweeper brushes 10. - The
sweeper 1 has anactuating tube 16 for actuating thefirst adjusting device 50. The actuatingtube 16 extends from the mountingflange 12 to thesecond end 52 of theguide rod 3 at which thehandle tubes 4 are also fixed. The actuatingtube 16 is configured so as to be rolled out at itsend 55 facing away from the mountingflange 12 so that the operator can easily grasp the actuatingtube 55. Thedrive motor 2 is supported on the mountingflange 12. - In
FIG. 2 , the adjusting devices (50, 51) are shown enlarged. The first adjusting device includes abolt 22 with which the mountingflange 12 is rotatably journalled about avertical axis 43 on the connectingflange 14. The mountingflange 12 has aguide piece 41 onto which theactuating tube 16 is pushed. Theguide piece 41 is configured as a strut which extends on the outer side of a support 33 (shown inFIG. 3 ) in the longitudinal direction of thesupport 33. The mountingflange 12 has the form of an angled member having a U-shaped profile. In order to ensure an adequate stability, the mountingflange 12 hasribs 37, which lie on the upper side of the connectingflange 14 on both sides of the mountingflange 12, and also hasthickenings 38 on the end which faces toward the mount 8 (FIG. 1 ). Thethickenings 38 extend on the base of the U-shaped profile outwardly. At this end,ribs 36 are provided for stiffening and define extensions of the legs of the U-shaped profile. Thefirst adjusting device 50 has the opening 19 (shown inFIG. 2 ) which is configured as an elongated opening. - The
second adjusting device 51 permits an adjustment of theguide rod 3 about the horizontal axis 42 (seeFIG. 4 ). Theguide rod 3 has a V-shapedlongitudinal slot 17 on its longitudinal sides. Atoothed element 27 is mounted in each of thelongitudinal slots 17. The connectingflange 14 has respective V-shapedprofiles 26 opposite corresponding ones of thelongitudinal slots 17. Respectivetoothed elements 27 are mounted in thelongitudinal slots 17 and the V-shapedprofiles 26. Each twotoothed elements 27 thereby form a toothed pair. - A
toothed element 27 is shown perspectively enlarged inFIG. 5 . Thetoothed element 27 has a set ofteeth 47 at its side. A tightening or clamping bore 44 is arranged at the center of the set ofteeth 47. On the side, which faces away from the set ofteeth 47, thetoothed element 27 has a V-profile 46 formed as an elevation. This V-shapedprofile 46 corresponds to the V-shapedprofile 26 of the connectingflange 14 and thelongitudinal slot 17 in theguide rod 3.Attachment openings 45 are arranged on both sides of the set ofteeth 47. - As
FIG. 2 shows, the connectingflange 14 and theattachment section 25 of thestrut 15 have a clamping bore 39. Theattachment section 25 is arranged on the connectingflange 14 and the clamping bore 29 is arranged concentrically to the clamping bore 44 of thetoothed elements 27. Attachment bores 28 are arranged concentrically to theattachment openings 45 of thetoothed elements 27. The attachment bores 28 are on both sides of the clamping bore 29. Thetoothed element 27 is arranged in the V-profile 26 of the connectingflange 14 and is connected to the connectingflange 14 and theattachment section 25 of thestrut 15 at the attachment bores 28. The opposite-lyingtoothed element 27 is fixedly connected to theguide rod 3 at its attachment bores 45. A bolt of thehand wheel 40 extends through the clamping bore 29 and the clamping bores 44 of bothtoothed elements 27. With thehand wheel 40, the twotoothed elements 27 can be clamped against each other. - The connecting
flange 14 is pretensioned outwardly so that it bends outwardly after loosening thehand wheel 40 and the twotoothed elements 27 can be rotated relative to each other. Astop 18 is provided on the mountingflange 12 and this stop limits the adjustment of theguide rod 3 upwardly. The set ofteeth 47 of thetoothed elements 27 can, for example, include 72 teeth so that adjustment steps of 50 are possible. - In
FIG. 3 , thefirst adjusting device 50 is shown partially in section. Thefirst adjusting device 50 has three openings (19, 20, 21) which are configured as respective longitudinal holes. The longitudinal direction of the openings (19, 20, 21) extends radially to thebolt 22. Each two mutually adjacent openings conjointly define an angle α with each other referred to thevertical axis 43 running through thebolt 22. The angle α is preferably between 10° to 20°, especially approximately 15°. In the position of thefirst adjusting device 50 shown inFIG. 3 , apin 30 is disposed in theopening 21. Thepin 30 is held in areceptacle 34. Thereceptacle 34 is connected to theactuating tube 16 via atransverse bore 23 shown inFIG. 2 . Thepin 30 is surrounded by aspring 31 which is braced with one end on thepin 30 and, at the other end, on ashoulder 32 in thestub 33 of the mountingflange 12. The actuatingtube 16 is pushed over thestub 33 of the mountingflange 12 and is guided on theguide 41 which is configured as one piece with thesupport 33. - For stiffening, the mounting
flange 12 hasribs 35 which extend between the two legs of the mountingflange 12. In order to achieve an adequate strength of the mountingflange 12, the mounting flange contains magnesium and/or is made of magnesium. The connectingflange 14 also advantageously contains magnesium or is made completely of magnesium. The actuatingtube 16 is pulled in the direction toward thehandle tubes 4 for actuating thefirst adjusting device 50. In this way, thepin 30 is pulled out of theopening 21. The actuatingtube 16 together with the sweeper brushes, which are arranged on the mountingflange 12, and the drive motor can then be rotated about the vertical axis 43 (shown inFIG. 4 ) relative to theguide rod 3 and the wheels (5, 7) of thesweeper 1. For fixing in another position, thepin 30 is brought over theopening 19 or theopening 20 and theactuating tube 16 is released so that thepin 30 is pressed into theopening spring 31. Other openings can be provided in order to offer more adjusting possibilities. - It is understood that the foregoing description is that of the preferred embodiments of the invention and that various changes and modifications may be made thereto without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (17)
1. A hand-guided sweeper comprising:
a guide rod;
at least one handle attached to said guide rod for guiding the sweeper over the ground;
at least one sweeper brush;
a drive motor for driving said sweeper brush in rotation;
at least one wheel and said at least one wheel and said sweeper brush being in contact engagement with the ground during operation of said sweeper; and,
an adjusting device for positionally adjusting said guide rod relative to said sweeper brush about an axis vertical with respect to the ground.
2. The hand-guided sweeper of claim 1 , wherein said adjusting device is a first adjusting device and said hand-guided sweeper further comprises a second adjusting device for positionally adjusting said guide rod relative to said sweeper brush and said wheel about an axis horizontal referred to the ground.
3. The hand-guided sweeper of claim 2 , further comprising a connecting flange; and, said first and second adjusting devices being mounted on said connecting flange with said connecting flange being common to both of said adjusting devices.
4. The hand-guided sweeper of claim 3 , wherein said first adjusting device includes first and second openings and a pin for engaging said first opening in a first position of said first adjusting device and for engaging said second opening in a second second position of said first adjusting device.
5. The hand-guided sweeper of claim 4 , wherein said first adjusting device further includes a spring for holding said pin in said first or second opening.
6. The hand-guided sweeper of claim 4 , wherein said first adjusting device includes a third opening; said three openings being arranged so as to permit said sweeper brush to be arranged to assume a position parallel to the running direction of said at least one wheel and a position rotated by 15° in both directions relative to said running direction of said at least one wheel.
7. The hand-guided sweeper of claim 4 , wherein said guide rod has a first end facing toward said sweeper brush; and, said first adjusting device is mounted on said first end of said guide rod.
8. The hand-guided sweeper of claim 7 , wherein said guide rod has a second end facing away from said sweeper brush; and, said first adjusting device includes an actuating element which extends up to said second end of said guide rod.
9. The hand-guided sweeper of claim 8 , wherein said actuating element is configured as an actuating tube connected to said pin.
10. The hand-guided sweeper of claim 9 , wherein said first adjusting device further includes a mounting flange attached to said connecting flange so as to be rotatable thereon about said vertical axis; and, said actuating element is attached to said mounting flange.
11. The hand-guided sweeper of claim 10 , further comprising a mount common to both said drive motor and said sweeper brush; and, said drive motor, said sweeper brush and said mounting flange all being mounted on said mount.
12. The hand-guided sweeper of claim 10 , wherein at least one of said mounting flange and said connecting flange contains magnesium.
13. The hand-guided sweeper of claim 2 , wherein said second adjusting device includes first and second toothed elements which are in mutual engagement.
14. The hand-guided sweeper of claim 13 , wherein said first toothed element is connected to said connecting flange so as to not rotate relative thereto and said second toothed element is connected to said guide rod so as to not rotate relative thereto.
15. The hand-guided sweeper of claim 14 , said second adjusting device further including means for releasably clamping said first and second toothed elements against each other.
16. The hand-guided sweeper of claim 15 , said connecting flange being so pretensioned that said first and second toothed elements can be rotated relative to each other when said clamping means is loosened.
17. The hand-guided sweeper of claim 16 , wherein said guide rod defines a center axis and said second adjusting device is configured so as to be mirror symmetrical with respect to said center axis; and, wherein said first and second toothed elements define a first pair of toothed elements and said second adjusting device includes a second pair of said toothed elements; and, said first and second pairs of toothed elements are disposed on respective sides of said guide rod.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004042708.9 | 2004-09-03 | ||
DE102004042708A DE102004042708A1 (en) | 2004-09-03 | 2004-09-03 | Hand-held sweeping roller |
Publications (2)
Publication Number | Publication Date |
---|---|
US20060048317A1 true US20060048317A1 (en) | 2006-03-09 |
US7631388B2 US7631388B2 (en) | 2009-12-15 |
Family
ID=35852470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/206,190 Expired - Fee Related US7631388B2 (en) | 2004-09-03 | 2005-08-18 | Hand-guided sweeper |
Country Status (4)
Country | Link |
---|---|
US (1) | US7631388B2 (en) |
CN (1) | CN1743555B (en) |
DE (1) | DE102004042708A1 (en) |
FR (1) | FR2875825B1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103194992A (en) * | 2012-01-09 | 2013-07-10 | 芜湖爱瑞特环保科技有限公司 | Driving device of hand-push type sweeper |
RU2530939C1 (en) * | 2013-06-19 | 2014-10-20 | Кантемир Замирович Ламердонов | Lever-type device for sweeping streets and roads |
CN104389285A (en) * | 2014-12-14 | 2015-03-04 | 周永伦 | Rolling brush lifting and slightly adjusting device for sweeping vehicle |
CN105755992A (en) * | 2016-03-21 | 2016-07-13 | 南通明诺机械有限公司 | Small-sized floor sweeper with optimized vehicle body structure |
CN109512342A (en) * | 2018-12-25 | 2019-03-26 | 深圳市云鼠科技开发有限公司 | A kind of sweeping robot and attitude detection based on gyroscope and method of getting rid of poverty |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110088366A1 (en) * | 2009-10-16 | 2011-04-21 | Alton Graetz | Rotary raking or sweeping implement |
DE202014005704U1 (en) | 2014-07-12 | 2015-10-14 | Viking Gmbh | Hand-held implement |
CA3005336A1 (en) | 2017-05-22 | 2018-11-22 | Tti (Macao Commercial Offshore) Limited | Power sweeper |
US11917951B2 (en) * | 2019-05-22 | 2024-03-05 | Nanjing Chervon Industry Co., Ltd. | Sweeper head and hand-held sweeper |
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US1846507A (en) * | 1929-07-05 | 1932-02-23 | Charles E Boring | Convertible raking and sweeping machine |
US2765483A (en) * | 1953-09-11 | 1956-10-09 | Blanc Gabriel G Le | Sweeping machine |
US3086789A (en) * | 1960-06-17 | 1963-04-23 | George J Kleiman | Adjustable wheel support for sidewalk snow sweeper |
US5054151A (en) * | 1990-06-26 | 1991-10-08 | Estes Sr Jerry C | Leaf sweeper |
US20050045347A1 (en) * | 2002-10-18 | 2005-03-03 | Thomas Stark | Portable handheld work apparatus |
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SE439792B (en) * | 1984-03-16 | 1985-07-01 | Gosta Agergard | SWEEPER |
CN2157219Y (en) * | 1993-04-07 | 1994-02-23 | 张洗 | Enclosed sweeping snow scraper |
DE19837038C1 (en) * | 1998-08-14 | 2000-01-05 | Hubert Focks | Hand operated height adjustable lawn mower |
CN2426490Y (en) * | 2000-06-01 | 2001-04-11 | 汪虎庆 | Cleaning cart |
-
2004
- 2004-09-03 DE DE102004042708A patent/DE102004042708A1/en not_active Withdrawn
-
2005
- 2005-08-18 US US11/206,190 patent/US7631388B2/en not_active Expired - Fee Related
- 2005-09-01 FR FR0508964A patent/FR2875825B1/en not_active Expired - Fee Related
- 2005-09-05 CN CN200510103643XA patent/CN1743555B/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1846507A (en) * | 1929-07-05 | 1932-02-23 | Charles E Boring | Convertible raking and sweeping machine |
US2765483A (en) * | 1953-09-11 | 1956-10-09 | Blanc Gabriel G Le | Sweeping machine |
US3086789A (en) * | 1960-06-17 | 1963-04-23 | George J Kleiman | Adjustable wheel support for sidewalk snow sweeper |
US5054151A (en) * | 1990-06-26 | 1991-10-08 | Estes Sr Jerry C | Leaf sweeper |
US20050045347A1 (en) * | 2002-10-18 | 2005-03-03 | Thomas Stark | Portable handheld work apparatus |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103194992A (en) * | 2012-01-09 | 2013-07-10 | 芜湖爱瑞特环保科技有限公司 | Driving device of hand-push type sweeper |
RU2530939C1 (en) * | 2013-06-19 | 2014-10-20 | Кантемир Замирович Ламердонов | Lever-type device for sweeping streets and roads |
CN104389285A (en) * | 2014-12-14 | 2015-03-04 | 周永伦 | Rolling brush lifting and slightly adjusting device for sweeping vehicle |
CN105755992A (en) * | 2016-03-21 | 2016-07-13 | 南通明诺机械有限公司 | Small-sized floor sweeper with optimized vehicle body structure |
CN109512342A (en) * | 2018-12-25 | 2019-03-26 | 深圳市云鼠科技开发有限公司 | A kind of sweeping robot and attitude detection based on gyroscope and method of getting rid of poverty |
Also Published As
Publication number | Publication date |
---|---|
US7631388B2 (en) | 2009-12-15 |
CN1743555A (en) | 2006-03-08 |
FR2875825A1 (en) | 2006-03-31 |
CN1743555B (en) | 2012-01-11 |
DE102004042708A1 (en) | 2006-03-09 |
FR2875825B1 (en) | 2012-11-16 |
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